Prognostic Significance of Left Ventricular Diastolic Dysfunction Assessed by Color M-mode Doppler Echocardiography in Patients With Chronic Left Ventricular Systolic Dysfunction
| Autor: | Norifumi Hirao, Satoshi Yamada, Hisao Onozuka, Hiroshi Okamoto, Taisei Mikami, Akira Kitabatake, Kaoru Komuro, Sanae Kaga, Mamiko Inoue |
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| Rok vydání: | 2004 |
| Předmět: |
medicine.medical_specialty
Ejection fraction E/A ratio medicine.diagnostic_test business.industry Dilated cardiomyopathy Doppler echocardiography medicine.disease Ventricular tachycardia Preload Heart failure Internal medicine medicine Cardiology Radiology Nuclear Medicine and imaging Isovolumic relaxation time business |
| Zdroj: | Journal of Echocardiography. 2:68-77 |
| ISSN: | 1349-0222 |
| Popis: | Background. Color M-mode Doppler echocardiography provides accurate evaluation of LV diastolic function noninvasively and is reportedly preload independent compared with pulsed Doppler transmitral velocity indexes. This study aimed to determine the prognostic significance of left ventricular (LV) diastolic function in patients with different degrees of chronic LV systolic dysfunction using color M-mode Doppler echocardiography.Methods. A total of 98 consecutive subjects (mean age 57 years, 78 males) with LV systolic dysfunction (61 with previous myocardial infarction and 37 with dilated cardiomyopathy) underwent clinical and echocardiographic evaluation to determine functional status. Measurements of LV and left atrial dimensions, LV ejection fraction (EF), the peak of early and late diastolic transmitral velocities (E and A, respectively), the E/A ratio, deceleration time of E velocity and isovolumic relaxation time using conventional echo-Doppler techniques, and LV flow propagation velocity (FPV) and FPV/E using color M-mode Doppler echocardiography were taken.Results. During the mean follow-up period of 37±28 months, 26 patients had cardiovascular events (death in 4, congestive heart failure in 13, ventricular tachycardia in 6, and cerebral infarction in 3). EF was the single independent predictor of cardiovascular events. While, in the subgroup with EF |
| Databáze: | OpenAIRE |
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